Okla. Stat. tit. 66 § 168
Every railroad corporation organized under the laws of the Territory of Oklahoma or of the Indian Territory within three (3) years prior to the taking effect of the Constitution of this state, that has complied with the Constitution of this state, and the capital stock of which, as provided in its articles of incorporation, was or is insufficient to construct its contemplated railroad, and which has been, or is in order to construct the same, required by necessity to increase its capital stock, may increase its capital stock under the laws of this state, and may file with the Secretary of State a certified copy of the proceedings of its board of directors and stockholders authorizing such increase, and a certificate of its chief engineer under oath, showing the estimated cost of its main lines, sidetracks, and permanent improvements in the state, and such corporation shall pay to the Secretary of State one-tenth of one percent (1/10 of 1%) of such estimated cost, without being required to pay to the State of Oklahoma the fee required under Section 3253: Provided, that such corporation shall pay all other fees required by law.
Okla. Stat. tit. 66, § 168